Pipes and Cistern MCQ

Test your knowledge with important Pipes and Cistern MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Pipes and Cistern MCQs at Bissoy

• A tap drips at a rate of one drop/second. 600 drops make 100 ml. The number of liters wasted in 300 days is -
  ক

  4320000 liters

  খ

  432000 liters

  গ

  43200 liters

  ঘ

  4320 liters
• Three pipes A, B and C can fill a tank in 6 hours, 9 hours and 12 hours respectively. B and C are opened for half an hour, then A is also opened. The time taken by the three pipes together to fill the remaining part of the tank is -
  ক

  3 hours

  খ

  2 hours

  গ

  $${\text{2}}\frac{1}{2}$$ hours

  ঘ

  $${\text{3}}\frac{1}{2}$$ hours
• Two pipes A and B can fill a tank with water in 30 minutes and 45 minutes respectively. The third pipe C can empty the tank in 36 minutes. First A and B are opened. After 12 minutes C is opened. Total time ( in minutes ) in which the tank will be filled up is -
  ক

  12 minutes

  খ

  24 minutes

  গ

  30 minutes

  ঘ

  36 minutes
• Pipe A can fill the tank in 8 hours and pipe B can fill it in 12 hours. If pipe A is opened at 7:00 AM and pipe B is opened at 9:00 AM, then at what time will the tank be full ?
  ক

  12:00 PM

  খ

  12:30 PM

  গ

  11:48 PM

  ঘ

  12:36 PM
• Pipe A can fill a tank in 4 hours and pipe B can fill it 6 hours. If they are opened on alternate hours and if pipe A is opened first then in how many hours, the tank shall be full ?
  ক

  $${\text{4}}\frac{1}{2}$$ hours

  খ

  $${\text{4}}\frac{2}{3}$$ hours

  গ

  $${\text{3}}\frac{1}{2}$$ hours

  ঘ

  $${\text{3}}\frac{1}{4}$$ hours
• Having the same capacity 9 taps fill up a water tank in 20 minutes. How many taps of the same capacity are required to fill up the same water tank in 15 minutes ?
  ক

  10 taps

  খ

  12 taps

  গ

  15 taps

  ঘ

  18 taps
• Three taps A, B, C can fill an overhead tank in 4, 6 and 12 hours respectively. How long would the three taps take to fill the tank if all of them are opened together ?
  ক

  2 hours

  খ

  4 hours

  গ

  3 hours

  ঘ

  5 hours
• A water tap fills a tub in 'p' hours and a sink at the bottom empties it in 'q' hours. If p
  ক

  $$\frac{1}{r} = \frac{1}{p} + \frac{1}{q}$$

  খ

  $$\frac{1}{r} = \frac{1}{p} - \frac{1}{q}$$

  গ

  $$r{\text{ = }}p{\text{ }} + {\text{ }}q$$

  ঘ

  $${\text{ }}r{\text{ }} = {\text{ }}p{\text{ }} - {\text{ }}q$$
• A pipe can fill a tank in x hours and another can empty it in y hours. In how many hours they together fill it in ( y > x) ?
  ক

  (x - y) hours

  খ

  (y - x) hours

  গ

  $$\left( {\frac{{xy}}{{x - y}}} \right)\,{\text{hours}}$$

  ঘ

  $$\left( {\frac{{xy}}{{y - x}}} \right){\text{hours}}$$
• A water tank can be filled by a tap in 30 minutes and another tap can fill it in 60 minutes. If both taps are kept open for 5 minutes and then the first tap is closed, how long will it take foe the tank to be filled ?
  ক

  20 minutes

  খ

  25 minutes

  গ

  30 minutes

  ঘ

  45 minutes
• A tank can be filled by pipe A in 2 hours and pipe B in 6 hours. At 10 A.M. pipe A was opened. At what time will the tank be filled if pipe B is opened at 11 A.M. ?
  ক

  12.45 A.M.

  খ

  5 P.M.

  গ

  11.45 A.M.

  ঘ

  12 P.M.
• A tap can completely fill a water tank in 8 hours. The water tank has a hole in it through which the water leaks out. The leakage will cause the full water tank to get empty in 12 hours. How much time will it take for the tap the the tank completely with the hole?
  ক

  16 hours

  খ

  18 hours

  গ

  24 hours

  ঘ

  None of these
• Two pipes can fill a tank in 12 hours and 16 hours respectively. A third pipe can empty the tank in 30 hours. If all three pipes are opened and functions simultaneously, how much time will the tank take to be full?( in hours )
  ক

  $$10\frac{4}{9}$$

  খ

  $$9\frac{1}{2}$$

  গ

  $$8\frac{8}{9}$$

  ঘ

  $$7\frac{2}{9}$$
• A tank is 7 metre long and 4 meter wide wide. At what speed should water run through a pipe 5 cm broad and 4 cm deep so that in 6 hours and 18 minutes water level in the tank rises by 4.5 meter?
  ক

  10 km/hours

  খ

  12 km/hours

  গ

  8 km/hours

  ঘ

  None of these
• An outlet pipe can empty a cistern in 3 hours. In what time will empty $$\frac{2}{3}$$ of the cistern?
  ক

  3 hours

  খ

  5 hours

  গ

  2 hours

  ঘ

  4 hours
• Two pipes can fill a tank in 40 and 48 minutes respectively and a waste pipe can empty 3 gallons per minutes. All the three pipes working together can fill the tank in 30 minutes, The capacity of the tank is-
  ক

  60 gallons

  খ

  120 gallons

  গ

  180 gallons

  ঘ

  240 gallons
• Two pipes A and B can fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is one - third full, a leak develops in the tank through which one - third water supplied by both the pipes gose out. The total time taken to fill the tank is?
  ক

  12 hours

  খ

  14 hours

  গ

  16 hours

  ঘ

  18 hours
• 12 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 9 litres?
  ক

  8

  খ

  15

  গ

  16

  ঘ

  18
• A swimming pool is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the pool in the same time during which the pool is filled by the third pipe alone. The second pipe fills the pool 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?
  ক

  6 hours

  খ

  10 hours

  গ

  15 hours

  ঘ

  30 hours
• One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in-
  ক

  81 min

  খ

  108 min

  গ

  144 min

  ঘ

  192 min
• A pump can fill a tank with water in 2 hours. Because of a leak, it took $$2\frac{1}{3}$$ hours to to fill the tank. The leak can drain all the water of the tank in?
  ক

  $$4\frac{1}{3}$$ hours

  খ

  7 hours

  গ

  8 hours

  ঘ

  14 hours
• A tank has a leak which would empty the completely filled tank in 10 hours. If the tank is full of water and a tap is opened which admits 4 litres of water per minute in the tank , the leak takes 15 hours to empty the tank. How many litres of water does the tank hold?
  ক

  2400 litters

  খ

  4500 litters

  গ

  1200 litters

  ঘ

  7200 litters
• Three pipes P, Q and R can separately fill a cistern in 4, 8 and 12 hours respectively. Another pipe S can empty the completely filled cistern in 10 hours. Which of the following arrangements will fill the empty cistern in less time than others?
  ক

  Q alone is open

  খ

  P, R and S are open

  গ

  P and S are open

  ঘ

  P, Q and S are open
• Two pipe A and B can fill a water tank in 20 and 24 minutes respectively and a third pipe C can empty at the rate of 3 gallons per minute. If A, B and C are open together to fill the tank in 15 minutes, find the capacity of tank?
  ক

  180 gallons

  খ

  150 gallons

  গ

  120 gallons

  ঘ

  60 gallons
• A vessel has three pipes connected to it , two to supply liquid and one to draw liquid. The first alone can fill the vessel in $$4\frac{1}{2}$$ hours, the second in 3 hours and the third can empty it in $$1\frac{1}{2}$$ hours. If all the pipes are opened simultaneously when the vessel is half full, how soon will it be emptied?
  ক

  $$4\frac{1}{2}$$ hours

  খ

  $$5\frac{1}{2}$$ hours

  গ

  $$6\frac{1}{2}$$ hours

  ঘ

  None of these
• A pipe can fill a tank in 3 hours. There are two outlet pipes from the tank which can empty it in 7 and 10 hours respectively. If all the three pipes are opened simultaneously, then the tank will be filled in -
  ক

  8 hours

  খ

  9 hours

  গ

  10 hours

  ঘ

  11 hours
• A tank with capacity T liters is empty. If water flows into the tank from pipe X at the rate of x liters per minute and water is pumped out by Y at the rate of y liters per minute and x > y, then how many minutes will the tank be filled?
  ক

  (x - y) 60 T minutes

  খ

  (T - x) minutes

  গ

  $$\frac{{\text{T}}}{{{\text{x}} - {\text{y}}}}$$  minutes

  ঘ

  $$\frac{{\text{T}}}{{{\text{y}} - {\text{x}}}}$$  minutes
• $$\frac{3}{4}$$ part of the tank is full of water. When 30 litres of water is taken out, the tank becomes empty. The capacity of the tank is -
  ক

  36 liters

  খ

  42 liters

  গ

  40 liters

  ঘ

  38 liters
• Two pipe can fill a cistern in 3 hours and 4 hours respectively and a waste pipe can empty it in 2 hours. If all the three pipes are kept open, then the cistern will be filled in-
  ক

  5 hours

  খ

  8 hours

  গ

  10 hours

  ঘ

  12 hours
• A pipe can fill a tank with water in 3 hours. Due to leakage in bottom, it takes $$3\frac{1}{2}$$ hours to fill it. In what time the leak will empty the completely filled tank?
  ক

  12 hours

  খ

  21 hours

  গ

  $$6\frac{1}{2}$$ hours

  ঘ

  $$10\frac{1}{2}$$ hours